Peter Lay
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Selbstgebaute Detektoren für Strahlenquellen in der Umwelt
Peter Lay
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Handbuch Experimente mit der freien Energie
Karl Kehrle; Peter Lay; Günter Wahl
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Signale aus dem Weltraum. Einfache Experimente zum Empfang ausserirdischer Radiosignale.
Lay, Peter
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Learning Package Available Energy By FRANZIS VERLAG
Peter Lay
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